29280868 has 12 divisors (see below), whose sum is σ = 54255852. Its totient is φ = 13779200.

The previous prime is 29280841. The next prime is 29280869. The reversal of 29280868 is 86808292.

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 17707264 = 3402^2 + 4208^2 .

It is not an unprimeable number, because it can be changed into a prime (29280869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215233 + ... + 215368.

It is an arithmetic number, because the mean of its divisors is an integer number (4521321).

Almost surely, 2^29280868 is an apocalyptic number.

It is an amenable number.

29280868 is a deficient number, since it is larger than the sum of its proper divisors (24974984).

29280868 is a wasteful number, since it uses less digits than its factorization.

29280868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430622 (or 430620 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 29280868 is about 5411.1799083010. The cubic root of 29280868 is about 308.2203544845.

The spelling of 29280868 in words is "twenty-nine million, two hundred eighty thousand, eight hundred sixty-eight".